Mobile mining machine and method for driving tunnels, roadways or shafts, in particular in hard rock

A method for driving tunnels, roadways or shafts in hard rock with a mobile mining machine which has a movable machine base frame and at least one tool drum mounted on a boom device and is rotatable about a drum axis and has tool carriers with stripping tools arranged on the circumference of the tool drum, and also a swinging device for swinging the boom device about a swing axis, comprising:

• removing material from a working face by swinging the boom device about the swing axis;
• and
• setting an angle of the drum axis of the tool drum in relation to the swing axis before and after each removal of material by operating a system of guide bars arranged between a supporting arm for the tool drum and the machine base frame;
• the system of guide bars having a trapezoidal four-bar linkage, with a first guide-bar bracket on a supporting arm side and a second guide-bar bracket on a swinging base side, which are connected by way of guide-bar arms.

A mobile mining machine for driving tunnels, roadways or shafts in hard rock, comprising:

• a movable machine base frame having a boom device, a swinging device for swinging the boom device about a swing axis in relation to the machine base frame, and with a tilting device for tilting the boom device;
• at least one tool drum coupled to the boom device for rotation about a drum axis;
• a plurality of rotatable tool carriers arranged on a circumference of the tool drum and having a plurality of tool cutters arranged on a carrier head of the tool carriers;
• a number of tool cutter groups on each tool carrier, with an angular offset of all the tool cutters of a tool cutter group being the same and the tool cutter groups having different radial distances from the axis of rotation of the tool carrier and a different distance from the drum axis;
• a rotary drive for the tool drum;
• wherein the boom device has a supporting arm, on which the tool drum is mounted, and a separate swinging base, which is swingable in relation to the machine base frame by the swinging device, and wherein the supporting arm and the swinging base are connected to one another by a system of guide bars, by way of which the setting angle of the drum axis in relation to the swing axis is adjustable.

A mobile mining machine for driving tunnels, roadways or shafts in hard rock, comprising:

• a movable machine base frame having a boom device, a swinging device for swinging the boom device about a swing axis in relation to the machine base frame, and with a tilting device for tilting the boom device;
• a first tool drum coupled to the boom device for rotation about a drum axis;
• a plurality of rotatable first tool carriers arranged on a circumference of the first tool drum;
• a rotary drive for the first tool drum;
• wherein the boom device has a supporting arm, on which the first tool drum is mounted, and a separate swinging base, which is swingable in relation to the machine base frame by the swinging device, and wherein the supporting arm and the swinging base are connected to one another by a system of guide bars, by way of which the setting angle of the drum axis in relation to the swing axis is adjustable;
• a second tool drum mounted on the supporting arm and having a plurality of rotatable second tool carriers arranged on a circumference of the second tool drum, the tool carriers on the first tool drum preferably being able to be rotatably driven or being rotatably driven oppositely to the second tool carriers on the second tool drum,
• wherein the axes of rotation of the first tool carriers on the first tool drum and the axes of rotation of the second tool carriers on the second tool drum are oblique to the associated drum axis and the axes of rotation of the first tool carriers on the first tool drum are oblique to the first drum axis by an angle (90°+α) and the axes of rotation of the second tool carriers on the second tool drum are oblique to the second drum axis by an angle (90°−α).

A mobile mining machine for driving tunnels, roadways or shafts in hard rock, comprising:

• a movable machine base frame having a boom device, a swinging device for swinging the boom device about a swing axis in relation to the machine base frame, and with a tilting device for tilting the boom device;
• at least one tool drum coupled to the boom device for rotation about a drum axis;
• a plurality of rotatable tool carriers arranged on a circumference of the tool drum;
• a rotary drive for the tool drum;
• wherein the boom device has a supporting arm, on which the tool drum is mounted, and a separate swinging base, which is swingable in relation to the machine base frame by the swinging device, and wherein the supporting arm and the swinging base are connected to one another by a system of guide bars, by way of which the setting angle of the drum axis in relation to the swing axis is adjustable;
• wherein the swinging base is arranged on a swinging arm and a further swinging joint is provided between the swinging arm and the machine base frame as a swing bearing for the swinging arm for lateral displacement of a position of the swing axis with respect to a longitudinal center axis of the machine base frame, and the first guide-bar bracket is connected to the swinging base in a fixed manner and the second guide-bar bracket is connected to the supporting arm in a tiltable manner, the tilting device being arranged between the second guide-bar bracket and the supporting arm.